Fraction Calculator
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A Guide to the Fraction Calculator
How to Use
- Click the integer/decimal area on the left to input numbers.
- Click the fraction area in the middle to input numerator and denominator.
- Click the operator area on the right to input operators (+, -, ×, ÷).
Fraction Basics
A fraction represents a part of a whole, written as
NumeratorDenominator
- Numerator: The number above the line.
- Denominator: The number below the line, indicating how many parts the whole is divided into.
- Proper Fraction: Numerator is less than the denominator (e.g., )12
- Improper Fraction: Numerator is greater than or equal to the denominator (e.g., )53
- Mixed Fraction: A combination of a whole number and a proper fraction (e.g., 1)12
Operation Rules
Addition and Subtraction
When denominators are the same, add or subtract the numerators directly.
When denominators are different, find a common denominator first.
e.g., + =
14
24
34
e.g., - = - =
13
14
412
312
112
Multiplication and Division
To multiply fractions, multiply the numerators and multiply the denominators.
To divide by a fraction, multiply by its reciprocal.
e.g., × = =
13
25
1 × 23 × 5
215
e.g., ÷ = × =
13
25
13
52
56
Simplifying Fractions
To simplify a fraction, divide both the numerator and denominator by their greatest common divisor.
e.g., = =
48
4 ÷ 48 ÷ 4
12